如图所示,正六边形ABCDEF的面积是36平方厘米,AG=AB,CH=CD,则四边形BCHG的面积是 平方厘米.
3÷4==( )÷16═ (填小数)
0.25=4÷ = :4= %= 折.
÷8==0.375=9÷ =.
= ÷ =9: == %= 折.
= ÷ = (填小数)